./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:21:12,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:21:12,369 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:21:12,374 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:21:12,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:21:12,419 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:21:12,419 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:21:12,420 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:21:12,421 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:21:12,424 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:21:12,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:21:12,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:21:12,426 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:21:12,426 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:21:12,426 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:21:12,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:21:12,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:21:12,427 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:21:12,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:21:12,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:21:12,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:21:12,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:21:12,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:21:12,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:21:12,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:21:12,432 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:21:12,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:21:12,433 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:21:12,433 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:21:12,434 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:21:12,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:21:12,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:21:12,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:21:12,435 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:21:12,435 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:21:12,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:21:12,436 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:21:12,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:21:12,437 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:21:12,437 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:21:12,438 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:21:12,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:21:12,439 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f16b4cfe031f645c2fa5eeec572887c79d8e9243727503d849e4b19e0e31cc63 [2024-11-10 10:21:12,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:21:12,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:21:12,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:21:12,759 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:21:12,760 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:21:12,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-11-10 10:21:14,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:21:14,831 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:21:14,833 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2024-11-10 10:21:14,885 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90ee026ef/383ec2d3385d42bc8ba28d126c68dedf/FLAG825f211d0 [2024-11-10 10:21:14,901 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90ee026ef/383ec2d3385d42bc8ba28d126c68dedf [2024-11-10 10:21:14,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:21:14,907 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:21:14,908 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:21:14,909 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:21:14,915 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:21:14,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:21:14" (1/1) ... [2024-11-10 10:21:14,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aacf4c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:14, skipping insertion in model container [2024-11-10 10:21:14,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:21:14" (1/1) ... [2024-11-10 10:21:15,026 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:21:15,503 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2024-11-10 10:21:21,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:21:21,436 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:21:21,456 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5520,5533] [2024-11-10 10:21:21,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "b %b0, %1\n" : "+q" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2024-11-10 10:21:21,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "w %w0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2024-11-10 10:21:21,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "l %0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2024-11-10 10:21:21,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile ("" "xchg" "q %q0, %1\n" : "+r" (__ret), "+m" (*((&head->first))) : : "memory", "cc"); [3228] [2024-11-10 10:21:21,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: asm volatile("ud2"); [5817] [2024-11-10 10:21:21,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:21:22,369 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:21:22,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22 WrapperNode [2024-11-10 10:21:22,370 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:21:22,371 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:21:22,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:21:22,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:21:22,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22" (1/1) ... [2024-11-10 10:21:22,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22" (1/1) ... [2024-11-10 10:21:22,554 INFO L138 Inliner]: procedures = 1354, calls = 1479, calls flagged for inlining = 352, calls inlined = 18, statements flattened = 400 [2024-11-10 10:21:22,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:21:22,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:21:22,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:21:22,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:21:22,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22" (1/1) ... [2024-11-10 10:21:22,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22" (1/1) ... [2024-11-10 10:21:22,583 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22" (1/1) ... [2024-11-10 10:21:22,633 INFO L175 MemorySlicer]: Split 52 memory accesses to 7 slices as follows [2, 9, 1, 4, 2, 31, 3]. 60 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 0, 1, 4, 2, 31, 3]. The 3 writes are split as follows [0, 3, 0, 0, 0, 0, 0]. [2024-11-10 10:21:22,634 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22" (1/1) ... [2024-11-10 10:21:22,634 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22" (1/1) ... [2024-11-10 10:21:22,661 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22" (1/1) ... [2024-11-10 10:21:22,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22" (1/1) ... [2024-11-10 10:21:22,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22" (1/1) ... [2024-11-10 10:21:22,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22" (1/1) ... [2024-11-10 10:21:22,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:21:22,702 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:21:22,702 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:21:22,702 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:21:22,703 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22" (1/1) ... [2024-11-10 10:21:22,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:21:22,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:21:22,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 10:21:22,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 10:21:22,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:21:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:21:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:21:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:21:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:21:22,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-10 10:21:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-10 10:21:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:21:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:21:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:21:22,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:21:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:21:22,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:21:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:21:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:21:22,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:21:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-10 10:21:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-10 10:21:22,806 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2024-11-10 10:21:22,806 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2024-11-10 10:21:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 10:21:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 10:21:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:21:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:21:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:21:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:21:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:21:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-10 10:21:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-10 10:21:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2024-11-10 10:21:22,807 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2024-11-10 10:21:22,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:21:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:21:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:21:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:21:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:21:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-10 10:21:22,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-10 10:21:22,812 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:21:23,280 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:21:23,282 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:21:23,479 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6551: havoc access_ok_#t~nondet1065#1; [2024-11-10 10:21:23,479 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6543: havoc __put_user_#t~nondet1063#1; [2024-11-10 10:21:23,479 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6636: havoc nvram_read_byte_#t~nondet1081#1; [2024-11-10 10:21:23,608 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6551: havoc access_ok_#t~nondet1065#1; [2024-11-10 10:21:23,608 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6535: havoc __get_user_#t~nondet1061#1; [2024-11-10 10:21:23,839 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6632: havoc nvram_get_size_#t~nondet1080#1; [2024-11-10 10:21:23,840 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6650: havoc printk_#t~nondet1083#1; [2024-11-10 10:21:23,840 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6624: havoc misc_register_#t~nondet1078#1; [2024-11-10 10:21:23,842 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:21:23,842 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:21:24,400 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:21:24,400 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:21:24,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:21:24 BoogieIcfgContainer [2024-11-10 10:21:24,401 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:21:24,404 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:21:24,404 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:21:24,408 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:21:24,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:21:14" (1/3) ... [2024-11-10 10:21:24,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa14e1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:21:24, skipping insertion in model container [2024-11-10 10:21:24,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:21:22" (2/3) ... [2024-11-10 10:21:24,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa14e1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:21:24, skipping insertion in model container [2024-11-10 10:21:24,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:21:24" (3/3) ... [2024-11-10 10:21:24,411 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2024-11-10 10:21:24,433 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:21:24,433 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 10:21:24,433 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:21:24,531 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 10:21:24,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 51 places, 56 transitions, 126 flow [2024-11-10 10:21:24,618 INFO L124 PetriNetUnfolderBase]: 12/54 cut-off events. [2024-11-10 10:21:24,618 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-10 10:21:24,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 54 events. 12/54 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 116 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 51. Up to 4 conditions per place. [2024-11-10 10:21:24,624 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 56 transitions, 126 flow [2024-11-10 10:21:24,628 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 47 places, 52 transitions, 113 flow [2024-11-10 10:21:24,637 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:21:24,645 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9016f0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:21:24,645 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-10 10:21:24,668 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:21:24,668 INFO L124 PetriNetUnfolderBase]: 10/45 cut-off events. [2024-11-10 10:21:24,668 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 10:21:24,669 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:21:24,669 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:21:24,670 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 10:21:24,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:21:24,676 INFO L85 PathProgramCache]: Analyzing trace with hash 996900947, now seen corresponding path program 1 times [2024-11-10 10:21:24,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:21:24,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083270059] [2024-11-10 10:21:24,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:21:24,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:21:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:21:25,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:21:25,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:21:25,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083270059] [2024-11-10 10:21:25,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083270059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:21:25,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:21:25,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 10:21:25,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244829874] [2024-11-10 10:21:25,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:21:25,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 10:21:25,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:21:25,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 10:21:25,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 10:21:25,271 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 56 [2024-11-10 10:21:25,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 52 transitions, 113 flow. Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:25,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:21:25,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 56 [2024-11-10 10:21:25,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:21:25,579 INFO L124 PetriNetUnfolderBase]: 699/1287 cut-off events. [2024-11-10 10:21:25,579 INFO L125 PetriNetUnfolderBase]: For 43/43 co-relation queries the response was YES. [2024-11-10 10:21:25,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2382 conditions, 1287 events. 699/1287 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 6240 event pairs, 452 based on Foata normal form. 134/1277 useless extension candidates. Maximal degree in co-relation 2298. Up to 1054 conditions per place. [2024-11-10 10:21:25,600 INFO L140 encePairwiseOnDemand]: 52/56 looper letters, 36 selfloop transitions, 0 changer transitions 0/48 dead transitions. [2024-11-10 10:21:25,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 48 transitions, 177 flow [2024-11-10 10:21:25,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 10:21:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 10:21:25,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 68 transitions. [2024-11-10 10:21:25,614 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-11-10 10:21:25,615 INFO L175 Difference]: Start difference. First operand has 47 places, 52 transitions, 113 flow. Second operand 2 states and 68 transitions. [2024-11-10 10:21:25,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 48 transitions, 177 flow [2024-11-10 10:21:25,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 48 transitions, 172 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 10:21:25,623 INFO L231 Difference]: Finished difference. Result has 45 places, 48 transitions, 100 flow [2024-11-10 10:21:25,625 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=100, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2024-11-10 10:21:25,629 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, -2 predicate places. [2024-11-10 10:21:25,631 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 100 flow [2024-11-10 10:21:25,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:25,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:21:25,632 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:21:25,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:21:25,633 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 10:21:25,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:21:25,634 INFO L85 PathProgramCache]: Analyzing trace with hash -108405052, now seen corresponding path program 1 times [2024-11-10 10:21:25,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:21:25,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375099835] [2024-11-10 10:21:25,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:21:25,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:21:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:21:26,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:21:26,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:21:26,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375099835] [2024-11-10 10:21:26,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375099835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:21:26,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:21:26,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:21:26,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559411925] [2024-11-10 10:21:26,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:21:26,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:21:26,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:21:26,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:21:26,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:21:26,697 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2024-11-10 10:21:26,698 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:26,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:21:26,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2024-11-10 10:21:26,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:21:27,409 INFO L124 PetriNetUnfolderBase]: 1146/2008 cut-off events. [2024-11-10 10:21:27,409 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-10 10:21:27,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3806 conditions, 2008 events. 1146/2008 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 9947 event pairs, 362 based on Foata normal form. 0/1826 useless extension candidates. Maximal degree in co-relation 3803. Up to 916 conditions per place. [2024-11-10 10:21:27,421 INFO L140 encePairwiseOnDemand]: 46/56 looper letters, 95 selfloop transitions, 17 changer transitions 25/147 dead transitions. [2024-11-10 10:21:27,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 147 transitions, 580 flow [2024-11-10 10:21:27,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 10:21:27,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 10:21:27,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 235 transitions. [2024-11-10 10:21:27,426 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5245535714285714 [2024-11-10 10:21:27,426 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 100 flow. Second operand 8 states and 235 transitions. [2024-11-10 10:21:27,426 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 147 transitions, 580 flow [2024-11-10 10:21:27,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 147 transitions, 580 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 10:21:27,434 INFO L231 Difference]: Finished difference. Result has 57 places, 60 transitions, 204 flow [2024-11-10 10:21:27,435 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=204, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2024-11-10 10:21:27,436 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 10 predicate places. [2024-11-10 10:21:27,436 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 204 flow [2024-11-10 10:21:27,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:27,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:21:27,437 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:21:27,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:21:27,437 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 10:21:27,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:21:27,438 INFO L85 PathProgramCache]: Analyzing trace with hash -567789166, now seen corresponding path program 1 times [2024-11-10 10:21:27,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:21:27,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197206753] [2024-11-10 10:21:27,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:21:27,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:21:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:21:28,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:21:28,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:21:28,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197206753] [2024-11-10 10:21:28,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197206753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:21:28,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:21:28,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 10:21:28,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029764017] [2024-11-10 10:21:28,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:21:28,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:21:28,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:21:28,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:21:28,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:21:28,680 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 56 [2024-11-10 10:21:28,681 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 204 flow. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:28,681 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:21:28,682 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 56 [2024-11-10 10:21:28,682 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:21:29,899 INFO L124 PetriNetUnfolderBase]: 1807/3217 cut-off events. [2024-11-10 10:21:29,899 INFO L125 PetriNetUnfolderBase]: For 1347/1369 co-relation queries the response was YES. [2024-11-10 10:21:29,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7619 conditions, 3217 events. 1807/3217 cut-off events. For 1347/1369 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 18652 event pairs, 297 based on Foata normal form. 22/3123 useless extension candidates. Maximal degree in co-relation 7611. Up to 921 conditions per place. [2024-11-10 10:21:29,921 INFO L140 encePairwiseOnDemand]: 44/56 looper letters, 135 selfloop transitions, 29 changer transitions 71/246 dead transitions. [2024-11-10 10:21:29,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 246 transitions, 1405 flow [2024-11-10 10:21:29,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 10:21:29,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 10:21:29,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 286 transitions. [2024-11-10 10:21:29,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5107142857142857 [2024-11-10 10:21:29,925 INFO L175 Difference]: Start difference. First operand has 57 places, 60 transitions, 204 flow. Second operand 10 states and 286 transitions. [2024-11-10 10:21:29,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 246 transitions, 1405 flow [2024-11-10 10:21:29,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 246 transitions, 1405 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 10:21:29,943 INFO L231 Difference]: Finished difference. Result has 73 places, 84 transitions, 451 flow [2024-11-10 10:21:29,943 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=451, PETRI_PLACES=73, PETRI_TRANSITIONS=84} [2024-11-10 10:21:29,944 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 26 predicate places. [2024-11-10 10:21:29,944 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 84 transitions, 451 flow [2024-11-10 10:21:29,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 7 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:29,944 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:21:29,945 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:21:29,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:21:29,945 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 10:21:29,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:21:29,946 INFO L85 PathProgramCache]: Analyzing trace with hash 710417419, now seen corresponding path program 1 times [2024-11-10 10:21:29,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:21:29,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951429962] [2024-11-10 10:21:29,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:21:29,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:21:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:21:31,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:21:31,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:21:31,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951429962] [2024-11-10 10:21:31,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951429962] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:21:31,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896530825] [2024-11-10 10:21:31,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:21:31,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:21:31,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:21:31,247 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 10:21:31,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 10:21:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:21:31,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-10 10:21:31,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 10:21:31,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-10 10:21:31,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 31 [2024-11-10 10:21:32,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 10:21:32,045 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 10:21:32,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896530825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:21:32,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 10:21:32,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 12 [2024-11-10 10:21:32,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727151568] [2024-11-10 10:21:32,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:21:32,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:21:32,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:21:32,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:21:32,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-10 10:21:32,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 56 [2024-11-10 10:21:32,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 84 transitions, 451 flow. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:32,071 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:21:32,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 56 [2024-11-10 10:21:32,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:21:32,837 INFO L124 PetriNetUnfolderBase]: 1483/2752 cut-off events. [2024-11-10 10:21:32,837 INFO L125 PetriNetUnfolderBase]: For 2616/2670 co-relation queries the response was YES. [2024-11-10 10:21:32,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8066 conditions, 2752 events. 1483/2752 cut-off events. For 2616/2670 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 16052 event pairs, 571 based on Foata normal form. 74/2776 useless extension candidates. Maximal degree in co-relation 8051. Up to 1427 conditions per place. [2024-11-10 10:21:32,857 INFO L140 encePairwiseOnDemand]: 49/56 looper letters, 64 selfloop transitions, 23 changer transitions 75/175 dead transitions. [2024-11-10 10:21:32,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 175 transitions, 1184 flow [2024-11-10 10:21:32,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 10:21:32,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 10:21:32,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 195 transitions. [2024-11-10 10:21:32,859 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49744897959183676 [2024-11-10 10:21:32,859 INFO L175 Difference]: Start difference. First operand has 73 places, 84 transitions, 451 flow. Second operand 7 states and 195 transitions. [2024-11-10 10:21:32,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 175 transitions, 1184 flow [2024-11-10 10:21:32,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 175 transitions, 1182 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-10 10:21:32,887 INFO L231 Difference]: Finished difference. Result has 81 places, 78 transitions, 521 flow [2024-11-10 10:21:32,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=449, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=521, PETRI_PLACES=81, PETRI_TRANSITIONS=78} [2024-11-10 10:21:32,888 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 34 predicate places. [2024-11-10 10:21:32,889 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 78 transitions, 521 flow [2024-11-10 10:21:32,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:32,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:21:32,889 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:21:32,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 10:21:33,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:21:33,091 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 10:21:33,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:21:33,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1952681306, now seen corresponding path program 1 times [2024-11-10 10:21:33,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:21:33,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631164115] [2024-11-10 10:21:33,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:21:33,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:21:33,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:21:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:21:35,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:21:35,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631164115] [2024-11-10 10:21:35,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631164115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:21:35,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:21:35,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 10:21:35,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840351630] [2024-11-10 10:21:35,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:21:35,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 10:21:35,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:21:35,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 10:21:35,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-10 10:21:35,358 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 56 [2024-11-10 10:21:35,358 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 521 flow. Second operand has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 13 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:35,358 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:21:35,358 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 56 [2024-11-10 10:21:35,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:21:38,289 INFO L124 PetriNetUnfolderBase]: 3081/5943 cut-off events. [2024-11-10 10:21:38,290 INFO L125 PetriNetUnfolderBase]: For 11849/11859 co-relation queries the response was YES. [2024-11-10 10:21:38,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19577 conditions, 5943 events. 3081/5943 cut-off events. For 11849/11859 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 44555 event pairs, 187 based on Foata normal form. 12/5945 useless extension candidates. Maximal degree in co-relation 19557. Up to 1705 conditions per place. [2024-11-10 10:21:38,332 INFO L140 encePairwiseOnDemand]: 36/56 looper letters, 205 selfloop transitions, 54 changer transitions 132/401 dead transitions. [2024-11-10 10:21:38,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 401 transitions, 3521 flow [2024-11-10 10:21:38,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-10 10:21:38,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-10 10:21:38,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 444 transitions. [2024-11-10 10:21:38,335 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41729323308270677 [2024-11-10 10:21:38,335 INFO L175 Difference]: Start difference. First operand has 81 places, 78 transitions, 521 flow. Second operand 19 states and 444 transitions. [2024-11-10 10:21:38,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 401 transitions, 3521 flow [2024-11-10 10:21:38,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 401 transitions, 3343 flow, removed 47 selfloop flow, removed 5 redundant places. [2024-11-10 10:21:38,439 INFO L231 Difference]: Finished difference. Result has 106 places, 128 transitions, 1181 flow [2024-11-10 10:21:38,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=489, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1181, PETRI_PLACES=106, PETRI_TRANSITIONS=128} [2024-11-10 10:21:38,443 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 59 predicate places. [2024-11-10 10:21:38,443 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 128 transitions, 1181 flow [2024-11-10 10:21:38,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 13 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:38,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:21:38,443 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:21:38,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 10:21:38,444 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 10:21:38,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:21:38,446 INFO L85 PathProgramCache]: Analyzing trace with hash 347323198, now seen corresponding path program 1 times [2024-11-10 10:21:38,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:21:38,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505664714] [2024-11-10 10:21:38,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:21:38,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:21:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:21:40,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:21:40,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:21:40,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505664714] [2024-11-10 10:21:40,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505664714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:21:40,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:21:40,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-10 10:21:40,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940661008] [2024-11-10 10:21:40,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:21:40,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-10 10:21:40,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:21:40,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-10 10:21:40,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-10 10:21:41,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 56 [2024-11-10 10:21:41,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 128 transitions, 1181 flow. Second operand has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:41,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:21:41,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 56 [2024-11-10 10:21:41,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:21:45,259 INFO L124 PetriNetUnfolderBase]: 3792/7166 cut-off events. [2024-11-10 10:21:45,260 INFO L125 PetriNetUnfolderBase]: For 24305/24387 co-relation queries the response was YES. [2024-11-10 10:21:45,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27993 conditions, 7166 events. 3792/7166 cut-off events. For 24305/24387 co-relation queries the response was YES. Maximal size of possible extension queue 344. Compared 53136 event pairs, 259 based on Foata normal form. 77/7239 useless extension candidates. Maximal degree in co-relation 27962. Up to 1430 conditions per place. [2024-11-10 10:21:45,331 INFO L140 encePairwiseOnDemand]: 34/56 looper letters, 218 selfloop transitions, 79 changer transitions 142/448 dead transitions. [2024-11-10 10:21:45,331 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 448 transitions, 4418 flow [2024-11-10 10:21:45,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-10 10:21:45,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-10 10:21:45,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 454 transitions. [2024-11-10 10:21:45,334 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35248447204968947 [2024-11-10 10:21:45,334 INFO L175 Difference]: Start difference. First operand has 106 places, 128 transitions, 1181 flow. Second operand 23 states and 454 transitions. [2024-11-10 10:21:45,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 448 transitions, 4418 flow [2024-11-10 10:21:45,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 448 transitions, 4244 flow, removed 51 selfloop flow, removed 4 redundant places. [2024-11-10 10:21:45,483 INFO L231 Difference]: Finished difference. Result has 134 places, 153 transitions, 1673 flow [2024-11-10 10:21:45,484 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=1143, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1673, PETRI_PLACES=134, PETRI_TRANSITIONS=153} [2024-11-10 10:21:45,484 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 87 predicate places. [2024-11-10 10:21:45,485 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 153 transitions, 1673 flow [2024-11-10 10:21:45,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:45,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:21:45,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:21:45,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 10:21:45,485 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 10:21:45,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:21:45,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1049433148, now seen corresponding path program 2 times [2024-11-10 10:21:45,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:21:45,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115987782] [2024-11-10 10:21:45,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:21:45,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:21:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:21:48,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:21:48,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:21:48,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115987782] [2024-11-10 10:21:48,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115987782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:21:48,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:21:48,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-10 10:21:48,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401944401] [2024-11-10 10:21:48,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:21:48,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-10 10:21:48,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:21:48,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-10 10:21:48,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2024-11-10 10:21:48,349 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 56 [2024-11-10 10:21:48,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 153 transitions, 1673 flow. Second operand has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:48,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:21:48,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 56 [2024-11-10 10:21:48,350 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:21:51,631 INFO L124 PetriNetUnfolderBase]: 4921/9546 cut-off events. [2024-11-10 10:21:51,631 INFO L125 PetriNetUnfolderBase]: For 49393/49497 co-relation queries the response was YES. [2024-11-10 10:21:51,683 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41886 conditions, 9546 events. 4921/9546 cut-off events. For 49393/49497 co-relation queries the response was YES. Maximal size of possible extension queue 530. Compared 77573 event pairs, 386 based on Foata normal form. 84/9620 useless extension candidates. Maximal degree in co-relation 41842. Up to 1843 conditions per place. [2024-11-10 10:21:51,713 INFO L140 encePairwiseOnDemand]: 36/56 looper letters, 238 selfloop transitions, 110 changer transitions 134/491 dead transitions. [2024-11-10 10:21:51,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 491 transitions, 5815 flow [2024-11-10 10:21:51,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-10 10:21:51,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-10 10:21:51,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 410 transitions. [2024-11-10 10:21:51,716 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38533834586466165 [2024-11-10 10:21:51,716 INFO L175 Difference]: Start difference. First operand has 134 places, 153 transitions, 1673 flow. Second operand 19 states and 410 transitions. [2024-11-10 10:21:51,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 491 transitions, 5815 flow [2024-11-10 10:21:52,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 491 transitions, 5649 flow, removed 42 selfloop flow, removed 9 redundant places. [2024-11-10 10:21:52,032 INFO L231 Difference]: Finished difference. Result has 150 places, 199 transitions, 2598 flow [2024-11-10 10:21:52,033 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=1602, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2598, PETRI_PLACES=150, PETRI_TRANSITIONS=199} [2024-11-10 10:21:52,034 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 103 predicate places. [2024-11-10 10:21:52,034 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 199 transitions, 2598 flow [2024-11-10 10:21:52,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.235294117647058) internal successors, (174), 17 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:52,035 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:21:52,035 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:21:52,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 10:21:52,035 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 10:21:52,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:21:52,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1575144282, now seen corresponding path program 2 times [2024-11-10 10:21:52,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:21:52,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470841864] [2024-11-10 10:21:52,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:21:52,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:21:52,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:21:55,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:21:55,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:21:55,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470841864] [2024-11-10 10:21:55,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470841864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:21:55,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:21:55,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 10:21:55,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594548511] [2024-11-10 10:21:55,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:21:55,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 10:21:55,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:21:55,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 10:21:55,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-10 10:21:55,609 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 56 [2024-11-10 10:21:55,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 199 transitions, 2598 flow. Second operand has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 13 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:55,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:21:55,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 56 [2024-11-10 10:21:55,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:21:58,990 INFO L124 PetriNetUnfolderBase]: 4809/9462 cut-off events. [2024-11-10 10:21:58,990 INFO L125 PetriNetUnfolderBase]: For 67042/67160 co-relation queries the response was YES. [2024-11-10 10:21:59,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45936 conditions, 9462 events. 4809/9462 cut-off events. For 67042/67160 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 78572 event pairs, 452 based on Foata normal form. 107/9565 useless extension candidates. Maximal degree in co-relation 45885. Up to 2512 conditions per place. [2024-11-10 10:21:59,055 INFO L140 encePairwiseOnDemand]: 37/56 looper letters, 266 selfloop transitions, 99 changer transitions 149/529 dead transitions. [2024-11-10 10:21:59,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 529 transitions, 7278 flow [2024-11-10 10:21:59,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 10:21:59,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 10:21:59,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 362 transitions. [2024-11-10 10:21:59,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.430952380952381 [2024-11-10 10:21:59,058 INFO L175 Difference]: Start difference. First operand has 150 places, 199 transitions, 2598 flow. Second operand 15 states and 362 transitions. [2024-11-10 10:21:59,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 529 transitions, 7278 flow [2024-11-10 10:21:59,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 529 transitions, 7073 flow, removed 82 selfloop flow, removed 4 redundant places. [2024-11-10 10:21:59,427 INFO L231 Difference]: Finished difference. Result has 167 places, 222 transitions, 3219 flow [2024-11-10 10:21:59,428 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=2528, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3219, PETRI_PLACES=167, PETRI_TRANSITIONS=222} [2024-11-10 10:21:59,429 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 120 predicate places. [2024-11-10 10:21:59,431 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 222 transitions, 3219 flow [2024-11-10 10:21:59,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 13 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:21:59,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:21:59,431 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:21:59,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 10:21:59,432 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 10:21:59,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:21:59,432 INFO L85 PathProgramCache]: Analyzing trace with hash 525064896, now seen corresponding path program 3 times [2024-11-10 10:21:59,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:21:59,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027431714] [2024-11-10 10:21:59,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:21:59,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:21:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:01,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:01,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:01,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027431714] [2024-11-10 10:22:01,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027431714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:01,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:01,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 10:22:01,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123401673] [2024-11-10 10:22:01,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:01,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 10:22:01,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:01,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 10:22:01,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-10 10:22:01,333 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 56 [2024-11-10 10:22:01,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 222 transitions, 3219 flow. Second operand has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 13 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:01,334 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:01,334 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 56 [2024-11-10 10:22:01,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:03,472 INFO L124 PetriNetUnfolderBase]: 4610/9266 cut-off events. [2024-11-10 10:22:03,472 INFO L125 PetriNetUnfolderBase]: For 82108/82304 co-relation queries the response was YES. [2024-11-10 10:22:03,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47730 conditions, 9266 events. 4610/9266 cut-off events. For 82108/82304 co-relation queries the response was YES. Maximal size of possible extension queue 537. Compared 78474 event pairs, 407 based on Foata normal form. 156/9414 useless extension candidates. Maximal degree in co-relation 47671. Up to 2781 conditions per place. [2024-11-10 10:22:03,590 INFO L140 encePairwiseOnDemand]: 37/56 looper letters, 232 selfloop transitions, 121 changer transitions 88/455 dead transitions. [2024-11-10 10:22:03,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 455 transitions, 6833 flow [2024-11-10 10:22:03,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-10 10:22:03,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-10 10:22:03,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 312 transitions. [2024-11-10 10:22:03,594 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42857142857142855 [2024-11-10 10:22:03,594 INFO L175 Difference]: Start difference. First operand has 167 places, 222 transitions, 3219 flow. Second operand 13 states and 312 transitions. [2024-11-10 10:22:03,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 455 transitions, 6833 flow [2024-11-10 10:22:04,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 455 transitions, 6663 flow, removed 39 selfloop flow, removed 5 redundant places. [2024-11-10 10:22:04,549 INFO L231 Difference]: Finished difference. Result has 179 places, 238 transitions, 3787 flow [2024-11-10 10:22:04,549 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=3139, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=222, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=3787, PETRI_PLACES=179, PETRI_TRANSITIONS=238} [2024-11-10 10:22:04,550 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 132 predicate places. [2024-11-10 10:22:04,550 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 238 transitions, 3787 flow [2024-11-10 10:22:04,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 13 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:04,551 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:04,551 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:22:04,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 10:22:04,552 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 10:22:04,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:04,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1921240288, now seen corresponding path program 3 times [2024-11-10 10:22:04,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:04,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619774916] [2024-11-10 10:22:04,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:04,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:08,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:08,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:08,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619774916] [2024-11-10 10:22:08,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619774916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:08,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:08,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-10 10:22:08,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703988670] [2024-11-10 10:22:08,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:08,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-10 10:22:08,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:08,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-10 10:22:08,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2024-11-10 10:22:08,491 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 56 [2024-11-10 10:22:08,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 238 transitions, 3787 flow. Second operand has 19 states, 19 states have (on average 10.210526315789474) internal successors, (194), 19 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:08,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:08,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 56 [2024-11-10 10:22:08,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:22:14,154 INFO L124 PetriNetUnfolderBase]: 5705/10978 cut-off events. [2024-11-10 10:22:14,155 INFO L125 PetriNetUnfolderBase]: For 107357/107515 co-relation queries the response was YES. [2024-11-10 10:22:14,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58365 conditions, 10978 events. 5705/10978 cut-off events. For 107357/107515 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 90735 event pairs, 450 based on Foata normal form. 145/11117 useless extension candidates. Maximal degree in co-relation 58301. Up to 1976 conditions per place. [2024-11-10 10:22:14,264 INFO L140 encePairwiseOnDemand]: 34/56 looper letters, 327 selfloop transitions, 161 changer transitions 219/717 dead transitions. [2024-11-10 10:22:14,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 717 transitions, 11075 flow [2024-11-10 10:22:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-10 10:22:14,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2024-11-10 10:22:14,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 572 transitions. [2024-11-10 10:22:14,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3783068783068783 [2024-11-10 10:22:14,268 INFO L175 Difference]: Start difference. First operand has 179 places, 238 transitions, 3787 flow. Second operand 27 states and 572 transitions. [2024-11-10 10:22:14,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 717 transitions, 11075 flow [2024-11-10 10:22:14,933 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 717 transitions, 10293 flow, removed 73 selfloop flow, removed 9 redundant places. [2024-11-10 10:22:14,941 INFO L231 Difference]: Finished difference. Result has 205 places, 264 transitions, 4510 flow [2024-11-10 10:22:14,941 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=3534, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=132, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=4510, PETRI_PLACES=205, PETRI_TRANSITIONS=264} [2024-11-10 10:22:14,942 INFO L277 CegarLoopForPetriNet]: 47 programPoint places, 158 predicate places. [2024-11-10 10:22:14,943 INFO L471 AbstractCegarLoop]: Abstraction has has 205 places, 264 transitions, 4510 flow [2024-11-10 10:22:14,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 10.210526315789474) internal successors, (194), 19 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:14,943 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:22:14,944 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:22:14,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 10:22:14,944 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION === [whoop_wrapper_read_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, whoop_wrapper_write_nvramErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-11-10 10:22:14,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:22:14,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1324902396, now seen corresponding path program 4 times [2024-11-10 10:22:14,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:22:14,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202428419] [2024-11-10 10:22:14,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:22:14,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:22:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:22:16,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:22:16,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:22:16,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202428419] [2024-11-10 10:22:16,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202428419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:22:16,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:22:16,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-10 10:22:16,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152293297] [2024-11-10 10:22:16,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:22:16,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 10:22:16,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:22:16,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 10:22:16,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-10 10:22:16,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 56 [2024-11-10 10:22:16,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 264 transitions, 4510 flow. Second operand has 13 states, 13 states have (on average 12.461538461538462) internal successors, (162), 13 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 10:22:16,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:22:16,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 56 [2024-11-10 10:22:16,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand